VoIP PBXs

Goce Talaganov in his 2012 thesis ‘Green VoIP?: A SIP Based Approach’ - examines how one can use a Cisco Linksys WRT54GL + Asterisk + cloud to make a low power PBX replacement [Talaganov 2012]

Slide Notes

[Talaganov 2012] Goce Talaganov, ‘Green VoIP : A SIP Based Approach’, Master’s thesis, KTH, Communication Systems, CoS, Stockholm, Sweden, 2012 [Online]. Available: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98795 Links to an external site.

Transcript

[slide69] Now Goce Talaganov in a thesis in 2012 called "Green Voice over IP?" said, hey, can I take one of these Cisco Linksys WRT54 GL's, they're basically wireless line access points, can I turn it into my voice over IP server in a business to basically replace my PBX? And he said yes, I can. I can put all of the SIP software, I'm all set, but I can do something else, which is when the last user in the office has left for the day, what do I do? I shift all of my functionality into the cloud and even I go to sleep, right? So now if in the middle of the night a call comes for the business, do I need a piece of equipment running 24 hours a day, 365 days a year at the business? No. I simply have that redirected to the service running in the cloud somewhere where a virtual machine starts up, provides the service, takes the voicemail message, whatever, and then it can go to sleep. And he showed huge energy savings that you can get by this. You might not think that it's much, but imagine a server running 24 hours a day, 365 days a year at your business, even if it only takes 100 watts, that's a lot of cumulative power over the year, when most of the time it could have been sleeping.